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Physiology Higher Functions 69b40eb4

The diagram shows the effects of changing the set point of the hypothalamic temperature controller. Which set of changes occurs at point W compared with point V?

A
Shivering and vasoconstriction
B
Shivering and vasodilation
C
Sweating and vasodilation
D
Sweating and vasoconstriction
High-Yield Explanation
When the set point of the hypothalamic temperature-control centre is suddenly changed from the normal level to higher than normal it produces chilly sensations and shivering. To counteract the cold as perceived by hypothalamus, heat generating and heat preserving mechanism gets activated. One such mechanism of heat preservation is vasoconstriction. It is characteristics of febrile conditions.

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